11281018207 has 4 divisors (see below), whose sum is σ = 11328219360. Its totient is φ = 11233817056.

The previous prime is 11281018201. The next prime is 11281018237. The reversal of 11281018207 is 70281018211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11281018207 - 2¹⁹ = 11280493919 is a prime.

It is a super-2 number, since 2×11281018207² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11281018201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23600218 + ... + 23600695.

It is an arithmetic number, because the mean of its divisors is an integer number (2832054840).

Almost surely, 2^11281018207 is an apocalyptic number.

11281018207 is a deficient number, since it is larger than the sum of its proper divisors (47201153).

11281018207 is an equidigital number, since it uses as much as digits as its factorization.

11281018207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47201152.

The product of its (nonzero) digits is 1792, while the sum is 31.

The spelling of 11281018207 in words is "eleven billion, two hundred eighty-one million, eighteen thousand, two hundred seven".